Last month I bought a new HP Color LaserJet CP1525nw. Love it! Connected it to my wi-fi network in nothing flat. It's not a speed demon, but the quality is wonderful and I couldn't beat the price. All went well for the first 3 weeks. Printed from my iPad, iMac, MacBook, without a hitch. Then, it started going offline. The readout on the info screen showed that it was online. I could connect to it with Safari. Try to print — printer offline message. Huh? Tried the usual deleting, adding, reconnecting it to the router, resetting. Nope, the only thing that worked was to turn the printer off, then back on. It would print the next document, then it would again be offline. Yes, the air turned slightly blue.
On a gut level hunch, I turned off the printer, modem and router. Turned the modem back on, then the router and finally the printer. No problems since then. Like I said, sometimes it's the simple things.
Red Wings are done for the season. Time to start rooting for the Tigers. Think baseball!